FDA Says Inaccuracies in IQVIA Opioid Drug Data

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FDA says agency scientists have discovered an inaccuracy in some data provided to the agency by a data vendor, IQVIA National Sales Perspectives, including data on certain opioid drug products. An agency statement says FDA found a discrepancy in the IQVIA data that showed a more than 20% drop in the reported amount, expressed in kilograms, of fentanyl sold for a minimum of the past five years compared to what the IQVIA database previously reported.

“Based on this investigation and discussions with IQVIA, it is our understanding that past data were overestimated by IQVIA because of an error in IQVIA’s methods, which we believe resulted from IQVIA utilizing the wrong weight-based conversion factors to determine the amount of fentanyl in a given unit (such as a single fentanyl patch) for a subset of prescription fentanyl products,” the statement says. “This error caused IQVIA to overestimate the total amount of fentanyl distributed into the marketplace when that estimated volume was expressed in kilograms.”

FDA says that as a result of looking into the IQVIA fentanyl data issues it has identified additional data quality issues related to several other controlled substances with similar weight-based conversion factors, including oxymorphone and hydrocodone. “These additional errors raise serious concerns about systemic issues with IQVIA’s data and quality control procedures,” FDA says.

IQVIA says it knew about the measurement conversion issue before it was notified by FDA and recently corrected the problem.

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